ashworth



(No Model.) 2 Sheets-Sheet 1.

G. 85 E. ASHWORTH.

DRIVING MECHANISM FOR GARDING ENGINES.

No. 403,720. Patented May 21 1889.

E I I T Inventors, Wwmsw George flahworZ-h d N, PETERS, Phommm n mr, Wzshin mn. D, C.

(No Model.) 2 Sheets-Sheet 2.

G. 8: E. ASHWORTH.

DRIVING MECHANISM FOR GARDING ENGINES.

No. 403,720. Patented May 21 1889.

, Inventors Wutzwssea: George flshwor-Zh' 6;

(flail/worth N. PETERS, Phulo-Lnnugflphun Washinginn. D. C.

UNITED STATES FFICE.

ATENT GEORGE ASIIIVORTII AND ELIJAII ASIUVORTII, OF MANCHES"ER, COUNTY OF LANCASTER, EN lrIiAND.

DRIVING MECHANISM FOR CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 403,720, dated May 21, 1889. Application filed October 5,1886. Serial No. 215,386. (No model.) Patented in England August 2, 1884, No. 10,881.

To aZZ whom it may concern:

Be it known that we, GEORGE AsHwoR'rH and ELIJ AH AsHWoRTH, subj ects of the Queen of Great britain and Ireland, residing at Manchester, county of Lancaster, England,

have invented certain Improvements in Driving Mechanism for Carding -Engines, (for which British Letters Patent N 0. 10,881 were granted under date of August 2, 1884,) of

which the following is a specification.

Our invention relates to the driving of the doffer and main cylinder during the process of grinding. In the ordinary method of driving during the grinding the cylinder receives motion under the working conditions and revolves at its working speed, while the speed of the doifer is accelerated so as to have about the same surface speed as the main cylinder. In order to obtain a better grind- 2o ing effect, we so arrange the driving of the doifer as that during grinding its surface speed shall be reduced, and we also provide suitable means for reducing the surface speed of the main cylinder to a corresponding extent.

In the accompanying drawings, Figure 1 is a side elevation of sufficient of a carding-engine to illustrate our improvements. Fig. 2

is a plan of the parts on the same side of the cylinder. Figs. 3 and 4 are corresponding views on the other side of the cylinder, and showing devices which may be employed for driving the main cylinder from the doffer. Fig. 5 is a sectional view illustrating the con- 3 5 struction of a detail of the machine.

A is the main cylinder, having its shaft A adapted to suitable bearings, as usual, in the frame B of the machine.

D is the doffer, mounted upon the shaft D,

and S is the stripping-brush.

Upon the shaft of the main cylinder are mounted the usual loose pulley, a, and fast pulley Z), whereby the cylinder is revolved when the engine is at work. The loose pulley a is provided with a groove to receive a band, 0, which drives a pulley, (I, attached to or connected with the ordinary pinion, e. The said pinion gears with the usual wheel, f, fixed upon the shaft D of the dofferD. A second pulley, g, is attached to or formed in one piece with the said pulley (Z, and this second pulley drives the stripping-brush S by means of a band, 71. Ve do not, however, wish to confine ourselves to this method of driving the stripping-brush. 5 5

\Vhen the main cylinder is to be stripped, the driving-strap is removed from the ordinary pulley, 1', by which the dofferis driven during the working of the engine, and the band 0 is applied to its pulleys, as represented 6c in the drawings, When, therefore, the ordinary driving-belt is shifted from the fast pulleyb onto the loose pulley a, the doifer will be revolved.

An important advantage arising from this method of changing the actuation of the doffer is that the principal parts of the mechanism are always in position upon the cardingengine, so that it is only necessary to make the required changes in the connecting belts or bands.

In order to drive the main cylinder ata reduced speed corresponding with the surface speed of the dotfer, any suitable means may be used; but in all cases it is preferable to drive the main cylinder from the doffer. A simple means for driving the main cylinder from the dotl'er is illustrated in the aforesaid British Patent No. 10,881 of 1884; but we prefer to use the devices which form the subject of a separate application for United States Patent filed by us February 23, 1888, Serial No. 264,97 5, and which we will now describe briefly in connection with Figs. 2 l, and 5 of the drawings.

On the other side of the carding-engine from the pinion e and wheel f the doffer-shaft D is geared to a longitudinal side shaft, is, by means of bevel-wheels I, as usual. This side shaft, It, is mounted to turn in brackets p p, and is provided with a worm, 0, adapted to engage with a worm-wheel, m, on the axis of the main cylinder. In practice we prefer to form the ordinarybelt-pulley,n, with teeth to form this worm-wheel, by which means a special extra wheel is thus dispensed with. The shaft 70 is so mounted in its bearingbrackets 19 19 that it can be moved laterally, as is usual, in order to withdraw the bevelpinion q from gear with the wheel 0" when I00 the feed-rollers are stopped. For this purpose the sockets p p, and more particularly the latter, are elongated, as shown in the sectional View, Fig. 5. When the gears q r are to be kept in engagement, the shaft 70 is held up to the inner end of the slot in the socket p by means of a pin, 3, as will be readily understood. When this pin is withdrawn and the shaft moved laterally in the socket, the worm 0 is disengaged from gear with the worm-Wheel m. In order to then keep the worm out of the way during the ordinary working of the engine, the said worn is slid upon the shaft entirely away from the wheel n and toward the socket or bearing 9. Preparatory to the stripping operation, either the pinion q is removed from the shaft, so as to stop the revolution of the feed-rollers, or the lap is withdrawn from between the rollers, so as to stop the feed in that way. The worm is then slid along the shaft until it is in its operative position, as represented in Figs. 3 and 4:.

The worm 0 bears against a shoulder,-k', on the shaft 70, and the action of the worm tends to keep it up against this shoulder. The

shaft is provided with a fixed key adjacent to the shoulder at the point occupied by the worm when in its operative position, so that the worm is caused to revolve with the shaft. The driving-belt is now shifted onto the loose pulley, so that the main cylinder will cease to revolve at its working speed, but will receive a slow rotary motion through the medium of the said worm and worm-wheel.

We "claim as our invention- 1. The combination of the main cylinder and doffer-cylinder of a carding-engine with fast and loose pulleys on the main cylindershaft, a pulley, d, for driving the doifer-cylshaft, a pulley, d, for driving the doffer-cylinder, and a belt or band connecting the said loose pulley with the pulley d, all substantially as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

GEO. ASHWORTH. ELIJAH ASHWORTH.

Witnesses:

DAVID FULTON, ARTHUR LEDGER. 

